Radon and Cleanability Information
There have been many questions and for a while a flurry of news stories connecting Granite to radon. There is a lot of useful information already on the web about radon and I recommend the following sites (which can be accessed by clicking on them):
www.marble-institute.com: Is also full of information about Radon and granite and the various studies that have been done over the years.
Another good read on granite is a cleanability study that was done that compared granite to stainless steel and other countertop materials you can see the full report at:
www.docstoc.com
The Marble Institute also has a nice break down of the report on their website which can be reached by clicking here.